title: Carcinosarcoma of the maxillary sinus.
abstract: Carcinosarcoma is a highly malignant tumor characterized by dual malignant histologic differentiation of epithelial and mesenchymal components. The tumor is extremely rare in the sinonasal tract. We report a case of a 62-year-old man with carcinosarcoma involving the maxillary sinus.
authors.affiliation: Department of Otolaryngology-Head and Neck Surgery, Eulji University School of Medicine, Daejeon, Korea.
authors.forename: Jeong-Ki
authors.initials: JK
authors.lastname: Moon
authors.forename: Ah-Young
authors.initials: AY
authors.lastname: Kim
authors.forename: Dong-Sik
authors.initials: DS
authors.lastname: Chang
authors.forename: Kyung-You
authors.initials: KY
authors.lastname: Park
keywords: Carcinosarcoma; Maxillary sinus